A tap is opened to fill a bucket, and water flows from the tank through a pipe. Now, as shown in the diagram, consider two points A and B on the vertical part of the pipe which has a uniform cross section.

If the pipe is completely filled with water and the water flows steadily, then at which point is the speed of the water flow greater?

You are provided with two tumblers A and B one narrow and the other wide, as shown in the diagram. Both contain the same amount of hot water whose initial temperature is the same. Now you keep them open on a sunny day under similar conditions.